/* WSK Group Corporate Identity — buyer portal
 *
 * Implements WSK CI Manual v1.0 (May 2026):
 *   * Petrol #537780 as the only accent (≤ 10% surface)
 *   * Paper #FAFAF7 as background (warm off-white, NEVER pure white except in cards)
 *   * Ink #0A0A0A for headlines & primary buttons
 *   * No gradients, no glassmorphism, no neon — explicitly forbidden by §01 brand-not-list
 *   * Asymmetric, left-aligned, generous whitespace
 *   * Eyebrow (mono uppercase, petrol) → Title (chakra petch, dot at end) → Subtitle
 *   * Hairline rules in Ink or Rule-Soft (#E0DDD3), never Petrol as primary rule
 */

/* ── Typefaces (loaded from Google Fonts in layout <head>) ────────── */
:root {
  --font-display: 'Chakra Petch', 'Inter', system-ui, sans-serif;
  --font-body:    'Manrope',     'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;

  --color-paper:        #FAFAF7;
  --color-pure:         #FFFFFF;
  --color-ink:          #0A0A0A;
  --color-charcoal:     #1A1A1A;
  --color-graphite:     #2A2A2A;
  --color-muted:        #6B6F76;
  --color-rule:         #E0DDD3;
  --color-petrol-deep:  #3F5A61;
  --color-petrol:       #537780;
  --color-petrol-mid:   #69939D;
  --color-petrol-soft:  #87A9B1;
  --color-petrol-mist:  #C5D4D8;
  --color-success:      #2D8659;
  --color-warning:      #C68A2E;
  --color-warning-deep: #8E5F1A;
  --color-danger:       #A8453D;
}

html { background: var(--color-paper); }
body {
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-paper);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Display headings (Chakra Petch with negative letter-spacing for big sizes) */
.font-display { font-family: var(--font-display); letter-spacing: -0.01em; }
.font-mono    { font-family: var(--font-mono); }

/* ── Stilfigur: Eyebrow (mono UPPERCASE in Petrol) ────────────────── */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--color-petrol);
  display: inline-block;
}
.eyebrow-mid {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-petrol-mid);
}

/* ── Stilfigur: Page-Title with dot-at-end ────────────────────────── */
.h1-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.25rem, 4vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.018em;
  color: var(--color-ink);
}
.h1-title::after { content: '.'; color: var(--color-petrol); }
.h2-section {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.125rem;
  line-height: 1.3;
  color: var(--color-ink);
}

/* ── Subtitle (Manrope 300) ───────────────────────────────────────── */
.lead {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-graphite);
  max-width: 60ch;
}

/* ── Hairline rules ──────────────────────────────────────────────── */
.rule-ink  { border-color: var(--color-ink); }
.rule-soft { border-color: var(--color-rule); }
hr.rule-ink  { border-top: 1px solid var(--color-ink); border-bottom: 0; }
hr.rule-soft { border-top: 1px solid var(--color-rule); border-bottom: 0; }

/* ── Cards ───────────────────────────────────────────────────────── */
.card {
  background: var(--color-pure);
  border: 1px solid var(--color-rule);
  border-radius: 2px;
}
.card-petrol {
  background: var(--color-petrol);
  color: var(--color-pure);
  border-radius: 2px;
}
.card-ink {
  background: var(--color-ink);
  color: var(--color-paper);
  border-radius: 2px;
}

/* ── Buttons ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.65rem 1.25rem;
  border-radius: 2px;
  transition: all 0.18s ease;
  min-height: 44px;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-ink);
  color: var(--color-pure);
  border: 1px solid var(--color-ink);
}
.btn-primary:hover { background: var(--color-charcoal); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-secondary {
  background: transparent;
  color: var(--color-petrol);
  border: 1px solid var(--color-petrol);
}
.btn-secondary:hover { background: var(--color-petrol); color: var(--color-pure); }

.btn-ghost {
  background: transparent;
  color: var(--color-graphite);
  border: 1px solid var(--color-rule);
}
.btn-ghost:hover { border-color: var(--color-ink); color: var(--color-ink); }

.btn-danger-outline {
  background: transparent;
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}
.btn-danger-outline:hover { background: var(--color-danger); color: var(--color-pure); }

/* ── Form inputs ─────────────────────────────────────────────────── */
.input {
  background: var(--color-pure);
  border: 1px solid var(--color-rule);
  color: var(--color-ink);
  padding: 0.6rem 0.85rem;
  border-radius: 2px;
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  min-height: 44px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.input:focus {
  outline: none;
  border-color: var(--color-petrol);
  box-shadow: 0 0 0 2px rgba(83, 119, 128, 0.18);
}
.input-mono { font-family: var(--font-mono); }
.label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-muted);
  display: block;
  margin-bottom: 0.4rem;
}

/* ── Tables (per CI: Ink header with Pure text, mono uppercase column heads in Petrol-Mid) */
.tbl {
  width: 100%;
  background: var(--color-pure);
  border: 1px solid var(--color-rule);
  border-collapse: collapse;
  font-size: 0.9rem;
}
.tbl thead {
  background: var(--color-ink);
  color: var(--color-pure);
}
.tbl thead th {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  text-align: left;
  padding: 0.85rem 1rem;
}
.tbl tbody td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--color-rule);
  color: var(--color-graphite);
}
.tbl tbody tr:last-child td { border-bottom: none; }
.tbl tbody tr:hover { background: var(--color-paper); }
.tbl-zebra tbody tr:nth-child(even) { background: rgba(250, 250, 247, 0.6); }
.tbl-num   { text-align: right; font-variant-numeric: tabular-nums; }

/* ── Status badges (semantic colors, accent only — never as fill backgrounds) */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border-radius: 9999px;
  border: 1px solid currentColor;
  background: transparent;
}
.badge-pending  { color: var(--color-warning-deep); }
.badge-accepted { color: var(--color-success); }
.badge-rejected { color: var(--color-danger); }
.badge-counter  { color: var(--color-petrol); }
.badge-petrol   { color: var(--color-petrol); }

/* ── Petrol KC-style pill (KC-MARKIERUNG in CI manual) ────────────── */
.pill-petrol {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.7rem;
  background: var(--color-petrol);
  color: var(--color-pure);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  border-radius: 9999px;
}

/* ── Links ───────────────────────────────────────────────────────── */
a.link {
  color: var(--color-petrol);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s;
}
a.link:hover { border-bottom-color: var(--color-petrol); }

/* ── Navigation link with petrol underline on active ──────────────── */
.nav-link {
  position: relative;
  color: var(--color-graphite);
  font-size: 0.9rem;
  padding-bottom: 4px;
}
.nav-link:hover { color: var(--color-ink); }
.nav-link.active {
  color: var(--color-ink);
  font-weight: 500;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -16px;
  height: 2px;
  background: var(--color-petrol);
}

/* ── Language switcher ────────────────────────────────────────────── */
.lang-btn {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  padding: 0.25rem 0.55rem;
  color: var(--color-muted);
  border: 1px solid transparent;
  border-radius: 2px;
  transition: all 0.15s;
}
.lang-btn:hover { color: var(--color-ink); }
.lang-btn.active {
  color: var(--color-petrol);
  border-color: var(--color-rule);
  background: var(--color-pure);
}

/* ── Trenner: middle-dot per CI ───────────────────────────────────── */
.dot::before { content: '·'; color: var(--color-muted); margin: 0 0.6rem; }

/* ── Native dialog (modal) ────────────────────────────────────────── */
dialog {
  background: var(--color-pure);
  color: var(--color-ink);
  border: 1px solid var(--color-rule);
  border-radius: 2px;
  padding: 0;
  max-width: 32rem;
  width: 90%;
}
dialog::backdrop {
  background: rgba(10, 10, 10, 0.4);
}

/* ── HTMX progress indicator ──────────────────────────────────────── */
.htmx-indicator { opacity: 0; transition: opacity 200ms; }
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator { opacity: 1; }

/* ── Document header layout (per CI standard-header pattern) ──────── */
.doc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0 0.85rem;
  border-bottom: 1px solid var(--color-ink);
}
.doc-header .meta {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-muted);
}
.doc-footer {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-muted);
  padding: 1rem 0;
  border-top: 1px solid var(--color-rule);
  display: flex;
  justify-content: space-between;
}
